Celebrity Baby Blog / Jason Biggs

“We gave him some butternut squash,” Biggs told PEOPLE at Monday’s Orange Is the New Black FYC panel in West Hollywood.

The actor went on to joke about his baby’s refined palate, saying, “We gave him a bone-in filet mignon. Sushi. Only one of those things is real. The bone-in filet, obviously. Medium-rare. Served with a side of mashed potatoes … lobster mash.”

When pressed about what other delicacies Sid enjoys, Biggs asked for patience.

The new dad, who’s been open about the transformation he’s experienced since welcoming sonSid, felt a sudden surge of a “protective father/man of the house” instinct following the birth of his first child.

“L.A. had an earthquake and the whole house shook. I was up with the baby and it kicked in,” he tells PEOPLE. “There was definitely a real thing that kicked in … [a] take care of my family instinct that immediately happened.”

Biggs has been sharing smiles with his son for weeks, but despite being a first-time father, the actor knew they didn’t hold much meaning for his newborn.

Although he’s only been a father for a little over a month, Jason Biggs can fully appreciate the effect that the birth of his son has had — not just on him, but also on the woman that he loves.

“What I’m learning — and what’s interesting — is that my wife has changed completely, and I’m sure that I have too,” the actor told PEOPLE Friday at the PaleyFest Orange Is the New Blackpanel in Hollywood.

“She sees it in me, and I see it in her, and we’re stronger now because of it.”

As Biggs and his wife, actress and authorJenny Mollen, approach their six-year anniversary, there is little question that welcoming their son, Sid, into their world had that wonderfully tumultuous effect that no expectant parent can quite grasp until that day comes.

Mollen’s fears surrounding the possibility of motherhood boiled down to one issue: making a mistake.

“The truth was, children scared me. I knew that no matter what I did as a parent, I was bound to do some things wrong,” she explains. “I didn’t want to bring a person into the world just to f— them up and have them send me to voicemail for all of eternity.”